/** 
 * @Title SearchEditText.java
 * @Package cn.sinokj.mobile.property.view.sedit
 * @Description TODO(用一句话描述该文件做什么)
 * @author azzbcc Email: azzbcc@sina.com  
 * @date 创建时间 2016年6月29日 上午10:28:02
 * @version V1.0  
 **/
package cn.sinokj.party.chineseFourParty.view.sedit;

import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnFocusChangeListener;
import android.view.animation.Animation;
import android.view.animation.CycleInterpolator;
import android.view.animation.TranslateAnimation;
import android.widget.EditText;

import cn.sinokj.party.chineseFourParty.R;


/**
 * @ClassName SearchEditText
 * @Description 自定义搜索编辑控件
 * @author azzbcc Email: azzbcc@sina.com
 * @date 创建时间 2016年6月29日 上午10:28:02
 **/
public class SearchEditText extends EditText implements OnFocusChangeListener, TextWatcher {
	// the delete button
	private Drawable mClearDrawable;

	public SearchEditText(Context context) {
		this(context, null);
	}

	public SearchEditText(Context context, AttributeSet attrs) {
		this(context, attrs, android.R.attr.editTextStyle);
	}

	public SearchEditText(Context context, AttributeSet attrs, int defStyle) {
		super(context, attrs, defStyle);
		init();
	}

	private void init() {
		mClearDrawable = getCompoundDrawables()[2];
		if (mClearDrawable == null) {
			mClearDrawable = getResources().getDrawable(R.drawable.btn_tips_close);
		}
		mClearDrawable.setBounds(-20, 0, mClearDrawable.getIntrinsicWidth() - 20, mClearDrawable.getIntrinsicHeight());
		setClearIconVisible(false);
		setOnFocusChangeListener(this);
		addTextChangedListener(this);
	}

	/**
	 * 因为我们不能直接给EditText设置点击事件，所以我们用记住我们按下的位置来模拟点击事件 当我们按下的位置 在 EditText的宽度 -
	 * 图标到控件右边的间距 - 图标的宽度 和 EditText的宽度 - 图标到控件右边的间距之间我们就算点击了图标，竖直方向没有考虑
	 */
	@SuppressLint("ClickableViewAccessibility")
	@Override
	public boolean onTouchEvent(MotionEvent event) {
		if (getCompoundDrawables()[2] != null) {
			if (event.getAction() == MotionEvent.ACTION_UP) {
				boolean touchable = event.getX() > (getWidth() - getPaddingRight() - mClearDrawable.getIntrinsicWidth())
						&& (event.getX() < ((getWidth() - getPaddingRight())));
				if (touchable) {
					this.setText("");
				}
			}
		}

		return super.onTouchEvent(event);
	}

	/**
	 * 当ClearEditText焦点发生变化的时候，判断里面字符串长度设置清除图标的显示与隐藏
	 */
	public void onFocusChange(View v, boolean hasFocus) {
		if (hasFocus) {
			setClearIconVisible(getText().length() > 0);
		} else {
			setClearIconVisible(false);
		}
	}

	/**
	 * 设置清除图标的显示与隐藏，调用setCompoundDrawables为EditText绘制上去
	 * @param visible
	 */
	protected void setClearIconVisible(boolean visible) {
		Drawable right = visible ? mClearDrawable : null;
		setCompoundDrawables(getCompoundDrawables()[0], getCompoundDrawables()[1], right, getCompoundDrawables()[3]);
	}

	/**
	 * 当输入框里面内容发生变化的时候回调的方法
	 */
	@Override
	public void onTextChanged(CharSequence s, int start, int count, int after) {
		setClearIconVisible(s.length() > 0);
	}

	public void beforeTextChanged(CharSequence s, int start, int count, int after) {

	}

	public void afterTextChanged(Editable s) {
	}

	/**
	 * 设置晃动动画
	 */
	public void setShakeAnimation() {
		this.setAnimation(shakeAnimation(5));
	}

	/**
	 * 晃动动画
	 * @param counts 1秒钟晃动多少下
	 * @return
	 */
	public static Animation shakeAnimation(int counts) {
		Animation translateAnimation = new TranslateAnimation(0, 10, 0, 0);
		translateAnimation.setInterpolator(new CycleInterpolator(counts));
		translateAnimation.setDuration(1000);
		return translateAnimation;
	}
}